Mechanical Music Digest  Archives
You Are Not Logged In Login/Get New Account
Please Log In. Accounts are free!
Logged In users are granted additional features including a more current version of the Archives and a simplified process for submitting articles.
Home Archives Calendar Gallery Store Links Info

Spring Fundraising Drive In Progress. Please visit our home page to see this and other announcements:     Thank you. --Jody

MMD > Archives > January 2005 > 2005.01.26 > 08Prev  Next

Sealing Bellows Leaks
By John A. Tuttle

Hi All,  In his posting from Tue, 25 Jan 2005, Conrad Bladey, asks
the age-old question, 'What can I use to seal aging bellows cloth'.
Naturally, my professional response is, 'Don't seal it, rebuild it'.

At best, a sealer will give the bellows a few more years of service.
Every sealer I've ever tried provides just a couple thousandths of an
inch of sealing material which acts somewhat like a balloon.  Imagine,
if you will, a layer of flexible material stretched across any size
opening.  Now apply pressure.  What do you see?  Apply enough pressure
(or vacuum) and... POP!!

I recently wrote a posting about how deceptive worn bellows cloth
really is.  What may look and feel perfect good can indeed be perfectly
lousy.  Others have written similar postings about both old and new
cloth.  The point is, it's basically a waste of time to seal old
bellows cloth.  Furthermore, applying a sealer to anything will make it
stiffer.  It's just basic science.

All that said, if one insists on sealing old bellows cloth, the best
sealer for the job is Phenoseal.


John A Tuttle
Brick, New Jersey, USA

(Message sent Wed 26 Jan 2005, 14:20:15 GMT, from time zone GMT-0500.)

Key Words in Subject:  Bellows, Leaks, Sealing

Home    Archives    Calendar    Gallery    Store    Links    Info   

Enter text below to search the MMD Website with Google

CONTACT FORM: Click HERE to write to the editor, or to post a message about Mechanical Musical Instruments to the MMD

Unless otherwise noted, all opinions are those of the individual authors and may not represent those of the editors. Compilation copyright 1995-2024 by Jody Kravitz.

Please read our Republication Policy before copying information from or creating links to this web site.

Click HERE to contact the webmaster regarding problems with the website.

Please support publication of the MMD by donating online

Please Support Publication of the MMD with your Generous Donation

Pay via PayPal

No PayPal account required

Translate This Page